From: Bob Sinclair (bob@bobsinclair.net)
Date: Tue Dec 02 2008 - 21:49:30 ARST
I understand your question to be about the hash-mask-length parameter in
the bsr-candidate command. The most thorough discussion I have found is
in RFC 2362, section 3.7:
partial quote:
The hash function is used by all routers within a domain, to map a
group to one of the C-RPs from the RP-Set. For a particular group, G,
the hash function uses only those C-RPs whose Group-prefix covers G.
The algorithm takes as input the group address, and the addresses of
the Candidate RPs, and gives as output one RP address to be used.
end quote.
That is the theory. In labbing this up using various values I have not
been able to demonstrate any practical effect.
Hope that helps,
-Bob Sinclair CCIE 10427 CCSI 30427
www.netmasterclass.net
mihai.grigore@onlinehome.de wrote:
> Fellow EXPERTS,
>
> can someone explain the command option hash below?
>
> ip pim [vrf vrf-name] bsr-candidate interface-type interface-number
> [hash-mask-length] [priority]
>
> Thank you in advance for your replies.
>
>
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